Shade attachment for electric incandescent lamps.



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UNITED E. W. MEYER, or cnIoAGo, ILLINOIS, AssIGNonTo JAMES ALBERTvALrAnAIso, INDIANA.

SHADE ATTAcmIENT non ELECTRIC INCANDESCENT LAMPS.

'i .Specification of Letters Patent; i Patented May 26, 1908.-

` Application ned :une 6,1906. seal No. 320,830.

a and a socket portion generally indicated as af; Specifically I preferthat the combined base and socket member be made of a singlepiece shell,having a male threaded shell portion 5, adapted to iit in a socketiixture, and a female threaded shell portion 6 adapt-l ed to'receive anelectric incandescent lamp, there being formed at the juncture of thvtwo threadslof diieren't diameters a shoulder 8. The ortions 5 and -6of the shell are electrical yconnected together and constitute l thering contacts of the base and socket parts respectively. Electricallyconnected center contacts for the lbase and in insulated relation to thering contacts., a simple and eicient construction being shown in Fig.,1wherein 9 indicates a late of insu- T o all whom it my concern:

' Be it known that I, ALBERT F. W. MEYER,

a citizen of the UnitedStates, residing at Chicago, in the county ofCook-and State of Illinois have invented certain new and usc-- fulImprovements in Shade Attachments for Electric Incandescent Lamps, ofwhich the following is a-specification.l 1

My inventionrelates to improvements in shade attachments for electricincandescent lamp xtures, and has lIorits salient 'objects to rovide alamp shade attachmentwhich be rigid in construction, easy to handle andwhich may-be connected with'any lamp L5 socket'and incandescent lampvwithout `the use of tools.`

In the practice .of

my invention I combine,

to produce an article of manufacture, a comlatin `matcrial inserted inthe ollow socket bined socket-and-base shell, having properly mem er andbearing u on the interior shoulconnected electric terminals, and havingsecured thereto, and preferably insulated thered from, a lamp shade ofany suitable style, the

device being so constructed that an electric lamp may be'screwed intothe socket part of the attachment, engaging proper contact parts ofthesocket member, and the base part of the attachment may be inserted inthe customary socket part of an electrical fixture, the contact lpartsAof the base, elecvtrically connected with the like parts of the socketportion ofthe attachment, completing the electrical connection from thecontact parts of the fixture socket to the contact parts of the lamp.

It bevapparent that various constructions may be evolved embodying minvention, and for purposes of full disc osure I have shown in thedrawing several different embodiments of my invention.

' is a sectional Fig.

. different form of shade and the manner of attachment thereof toVthecombined base and socket member. Fig. 3 is a like view showing4ariother form of shade and manner of "attachder 8 formed at the 'oint`of merger of ortions of t shell.4

10 indicates an insulating plate set in the free end-'ofthe base portionof thel member 'and suitably secured therein, as by the upsetting oi'the metal surrounding it.

11 'indicates a stem of conducting material extending centrally throughthe plates 9 and 10 and'provided at its opposite end wit heads or nuts12 and A 13 respectively arranged at the exterior of the base an theinterior end of the soc'ket members and constituting the center contactsof the socket and baserespectively.

illustrated,`w e I consider it to be novel and advantageous, isillustrative only, an do not desire to be understood as limiting myselfto the specific construction describe further .than as specified in theclaims.

To the combined base and socket member I secure in some suitable manner,a lamp shade depending below, the socket member to shade a lain insertedtherein. l refer that the shade ge electrically insulate from the baseand socket member', and I further prefer that the lamp shade be sosecured to ment to the .base and socket member, and," said member as toe readily removable Fi 4 Ais another s ar view showing. yet -therefromif'des'red. v a 'iferent form of shade andV manner -of atl In thedrawings I have illustrated several tachment. 'I constructions embodyingmy invention an Throughout the drawin s like numerals of attaining theresults described.

' In Fig. 1 B indicates a lam reference refer always to ke parts. In thedrawings A represents generally a ordinaryiiaring type, p at its u per,

smaller end, with an turned portion combined' base and socket member,comi prising 'a base portion generally indicated as. 14 Indicates aninteriorly threaded annusocket are provide It will be understood thatthe construction shade of the the upper portion of the sha correspondingrecess in the ring member 14,

contact of the ture .socket to the center i erally similar tov thatshown'in Fig. 1, save.

lus adapted to be screw threaded upon the- I haveshowii thesemodications as sug` l gestive to those s killed .in the art, of the'surface cut to conform with t e upper eX- known forms of shades, but itwill be appar.- v tremity and inturned flange of the shade B. ent tothose skilled in the art that it may be 15 indicates another ringlikewise adapted readily adapted to yet other forms of shades, f

ase andsocket member and having its u ing the scope of my inventiontothe specific per surface of a shape complementary to that embodimentsshown. l of the lower surface of the ring '14, so that Having thusdescribed my invention, what said rings may coact to clam therebetween Iclaim and desire to secure by Letters Patde. Preferably ent, of theUnited `States isf:

the ring member 15 is provided with an ani1u- 1. The combination of asingle piece sheet lar boss 16 which projects through the cenmetalconductive shell having a lower part' A75 tral opening of the shade andis seatedin a constituting a socket, s irally corrugated to constitute athread bot insideand outside,l

and'an eXteriorly threadedV upper art of 'ameter constituting a ase; a

arent now that when the parts are assemged, as shown in Fig. 1,the'sliade thereby securely clamped between the rings 14, 15, and bythem connected with the combined base and` socket/member, a lamp C maybe in insulatedrelation to t e shell comprising a pair of opposing,interiorly threaded rings engaging the exterior thread of the socket andA constituting o posing members of a clam 2. The combination of a singlepiece sheet metal conductive shell having a lower part Vconstituting asocket, s irally corrugated to constitute a thread bot inside andoutside, an `an exteriorly threaded upper portion of different diameterconstituting a base, a shade, and means for attaching said shade to theshell, comprising two insulating rings screwed onto the exterior threadof the socket, gripping therebetween the shade and arranged to preventcontact of the shade A with the shell.

afforded through the electrically connected shell Iportions 5 and 6 ofthe combined socket and ase, and connection from the. center contact ofthe lamp being afforded through h contact pieces 12, 13 andtheircoiinecting'stein 11."

o accommodate such construction the rings 14a and 15l have t eirrespective lower and upper surfaces shaped for coaction with the upperportion 'of the shade, to clamp the same t erebetween. If VdesiredVentilating apertures 17`17 may be formed in the rings 14a and 15av topermit the escape of the heat generated by the lamp. y

In Fig. 3 I have shown a construction gened onto the exterior of the soc(et, each tapering toward one side and arranged with their smaller sidesconfronting, and a lamp shade, secured between said tapering surfaces ofthe rings.

lmetal-base and socket shell corrugated to am shade,'and means forsecuring the lamp sha e tothe socket comprising two insulating ringseach screwed on vto the outside screw threadof the socket and clampingthe shade therebetween.

n testimony whereof I hereunto set In hand'in the presence of twowitnesses.

ALBERT F. W. MEYER In the presence of`l iconen T. MAY, Jr., Maar F.ALLEN.

that t e ring members 14h and 15b grasp be- 115 pro-ject -.suitable setscrews 20 arranged' to ta e under the Haringl edge b2 of a suitableshade B2.

In Fig. k 1 I have shown a well known form of shade B3 having asu'bstantially flat to portion 3 secured directly between the shade, andmeans for'supporting the shade' 8c thread both inside and outside, andan eX- 100 l .exterior and interior thread, a

